CN221032867U - Extended range type electric vehicle engine piston ring set - Google Patents
Extended range type electric vehicle engine piston ring set Download PDFInfo
- Publication number
- CN221032867U CN221032867U CN202322802684.4U CN202322802684U CN221032867U CN 221032867 U CN221032867 U CN 221032867U CN 202322802684 U CN202322802684 U CN 202322802684U CN 221032867 U CN221032867 U CN 221032867U
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- China
- Prior art keywords
- ring
- electric vehicle
- extended
- vehicle engine
- oil scraper
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- 238000000576 coating method Methods 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims description 15
- 229910000639 Spring steel Inorganic materials 0.000 claims description 6
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005240 physical vapour deposition Methods 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to the technical field of piston rings, in particular to a piston ring set of an extended-range electric vehicle engine, which comprises a first gas ring, a second gas ring and a plurality of groups of oil scraper rings, wherein DLC (diamond-like carbon) coatings are arranged on the outer cambered surfaces of the first gas ring and the plurality of groups of the oil scraper rings, and PVD (physical vapor deposition) coatings are arranged on the outer cambered surfaces of the second gas ring.
Description
Technical Field
The utility model relates to the technical field of piston rings, in particular to a range-extending type piston ring set of an electric vehicle engine.
Background
The range-extending electric vehicle solves the problem that the mileage anxiety of a user using the electric vehicle is solved, the oil consumption can be greatly reduced, and the range-extending electric vehicle becomes a market hotspot. The range-extending engine only charges a battery and does not drive the vehicle, so that the working condition is special and is different from the design of a common fuel vehicle engine. The existing extended-range engine has the design requirements of high heat efficiency, low oil consumption, light weight, small size, long service life, no maintenance and the like, and the performance of a piston ring group of a core part in the existing engine can not completely meet the design requirements of the engine.
Based on the above, the utility model designs a range-extending type electric vehicle engine piston ring set to solve the above problems.
Disclosure of utility model
The utility model aims to provide a range-extended electric vehicle engine piston ring set so as to solve the technical problems.
In order to achieve the above purpose, the utility model provides the following technical scheme: the piston ring set of the extended-range electric vehicle engine comprises a first gas ring, a second gas ring and a plurality of groups of oil scraper rings, wherein DLC coatings are arranged on the outer cambered surfaces of the first gas ring and the plurality of groups of the oil scraper rings, and PVD coatings are arranged on the outer cambered surfaces of the second gas ring.
Preferably, the number of the plurality of groups of oil scraper rings is two, a lining ring is arranged between the two groups of oil scraper rings, and the two groups of oil scraper rings are embedded on the side wall of the lining ring.
Preferably, the first gas ring is made of high-chromium stainless steel, and the axial thickness of the first gas ring is 1.0mm.
Preferably, the second gas ring is made of spring steel, and the axial thickness of the second gas ring is 1.0mm.
Preferably, the oil scraper ring is made of spring steel, and the axial thickness of the oil scraper ring is 0.35mm.
Preferably, the lining ring is made of austenitic stainless steel, and the axial thickness of the lining ring is 0.25mm.
Preferably, the DLC coating thickness is 3-10 μm.
Preferably, the PVD coating has a thickness of 10-30 μm.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the DLC coating is arranged on the outer cambered surface of the first gas ring and the oil scraper ring, so that the wear resistance is improved, the maintenance period of the extended-range engine is prolonged, the maintenance frequency is reduced, and meanwhile, the lower friction coefficient of the extended-range engine is utilized, so that the oil consumption of the extended-range engine is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first gas ring structure according to the present utility model;
FIG. 2 is a schematic view of a second gas ring structure according to the present utility model;
FIG. 3 is a schematic view of the oil scraper ring according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a first gas ring according to the present utility model;
FIG. 5 is a schematic cross-sectional view of a second gas ring according to the present utility model;
Fig. 6 is a schematic cross-sectional structure of the oil scraper ring of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
The device comprises a first gas ring, a second gas ring, a 3-oil scraper ring, a 4-DLC coating, a 5-PVD coating and a 6-backing ring.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, based on the embodiments in the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.
In connection with fig. 1-6:
The piston ring set of the extended-range electric vehicle engine comprises a first gas ring 1, a second gas ring 2 and a plurality of groups of oil scraper rings 3, wherein DLC coatings 4 are arranged on the outer cambered surfaces of the first gas ring 1 and the plurality of groups of oil scraper rings 3, and PVD coatings 5 are arranged on the outer cambered surfaces of the second gas ring 2.
Further, the number of the plurality of groups of oil scraper rings 3 is two, a lining ring 6 is arranged between the two groups of oil scraper rings 3, and the two groups of oil scraper rings 3 are embedded on the side wall of the lining ring 6.
Further, the first gas ring 1 is made of high-chromium stainless steel, and the axial thickness of the first gas ring 1 is 1.0mm.
Further, the second gas ring 2 is made of spring steel, and the axial thickness of the second gas ring 2 is 1.0mm.
Further, the oil scraper ring 3 is made of spring steel, and the axial thickness of the oil scraper ring 3 is 0.35mm.
Further, the backing ring 6 is made of austenitic stainless steel, and the axial thickness of the backing ring 6 is 0.25mm.
Further, the DLC coating 4 has a thickness of 3 to 10 μm.
Further, the PVD coating 5 has a thickness of 10-30 μm.
The specific application embodiment of the utility model is as follows:
The first gas ring 1, the second gas ring 2, the oil scraper ring 3 and the lining ring 6 are all made of full steel thin materials. The steel material is favorable for improving the bending strength, and meets the requirements of the extended range engine on the piston ring for high strength, high rotating speed and high load; the steel material is beneficial to the total weight reduction of the piston ring set, and meets the design requirement of the extended-range electric vehicle engine for light weight; meanwhile, the overall thickness of the piston ring set is reduced, and the design requirement of miniaturization of the engine of the extended-range electric vehicle is met.
The DLC coating 4 has the advantages of high wear resistance, low friction coefficient, excellent tensile cylinder performance and the like. The DLC coating 4 is arranged on the outer cambered surfaces of the first gas ring 1 and the oil scraper ring 3, and the high wear resistance of the DLV coating meets the requirement of long service and maintenance period of the extended-range engine; meanwhile, the DLV coating has a lower friction coefficient, is beneficial to reducing the increased oil consumption due to friction, and meets the requirement of low oil consumption of the extended range engine; the cylinder pulling resistance is improved, and the service life of the extended-range engine is further prolonged.
The PVD coating 5 is arranged on the outer arc surface of the second gas ring 2, the wear resistance of the second gas ring 2 is improved by utilizing the PVD coating 5, the service life of the second gas ring 2 is prolonged, the oil scraping performance is kept, and the long-life maintenance-free requirement of the extended-range engine is met.
In the description of the utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or be integrated; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms in the utility model will be understood by those of ordinary skill in the art.
Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an increase journey electric motor car engine piston ring group, includes first gas ring (1), second gas ring (2) and multiunit oil scraper ring (3), its characterized in that: the outer cambered surfaces of the first gas ring (1) and the plurality of groups of oil scraper rings (3) are provided with DLC coatings (4), and the outer cambered surfaces of the second gas ring (2) are provided with PVD coatings (5).
2. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the number of the plurality of groups of oil scraper rings (3) is two, a lining ring (6) is arranged between the two groups of oil scraper rings (3), and the two groups of oil scraper rings (3) are embedded on the side wall of the lining ring (6).
3. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the first gas ring (1) is made of high-chromium stainless steel, and the axial thickness of the first gas ring (1) is 1.0mm.
4. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the second gas ring (2) is made of spring steel, and the axial thickness of the second gas ring (2) is 1.0mm.
5. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the oil scraper ring (3) is made of spring steel, and the axial thickness of the oil scraper ring (3) is 0.35mm.
6. The extended-range electric vehicle engine piston ring set according to claim 2, wherein: the lining ring (6) is made of austenitic stainless steel, and the axial thickness of the lining ring (6) is 0.25mm.
7. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the DLC coating (4) has a thickness of 3-10 mu m.
8. The extended-range electric vehicle engine piston ring set of claim 1, wherein: the thickness of the PVD coating (5) is 10-30 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322802684.4U CN221032867U (en) | 2023-10-19 | 2023-10-19 | Extended range type electric vehicle engine piston ring set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322802684.4U CN221032867U (en) | 2023-10-19 | 2023-10-19 | Extended range type electric vehicle engine piston ring set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221032867U true CN221032867U (en) | 2024-05-28 |
Family
ID=91140808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322802684.4U Active CN221032867U (en) | 2023-10-19 | 2023-10-19 | Extended range type electric vehicle engine piston ring set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221032867U (en) |
-
2023
- 2023-10-19 CN CN202322802684.4U patent/CN221032867U/en active Active
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| GR01 | Patent grant |